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Basic counting

Count without omissions using tables and trees, and distinguish addition from multiplication.

Meaning

Counting outcomes means including every possible result without omissions or duplicates. Add mutually exclusive choices; multiply stage-by-stage choices when the conditions allow it.

Example

Practice for this concept

Scope and references

Topics

Counting systematically, tables and tree diagrams, addition and multiplication principles

Learning goal

Count without omissions using tables and trees, and distinguish addition from multiplication.

Helpful background

Classify objects and count each exactly once.

Basic counting

These choice exercises calculate or judge specified finite data, trials, or assumptions. They do not establish data collection, written inference, model validation, or mastery of the whole statistics area.